The modern experience lacks the possibility to use the standard search webpart. But they have something called Highlighted content. It is a bit tricky to configure but with some time and quite a few tries you can get to an almost perfect solution. Please have a look at the images below.
If highlighted content is not what you are looking for maybe this is ...
Currently, there is no Attendees field in Events web part on Modern pages. It is by default.
As modern pages are continued improving, you can submit a feedback or vote the following user voice about this feature.
Attendee List Of Events Web Part
The Excel file which you are displaying in the web part is likely located in a SharePoint document library that has a more restricted permission set. Locate the document library which holds your actual Excel file in your SharePoint site, and set the permissions of that library to also include "Everyone except external users".
This solution works on premise. There is no way implementing it on SharePoint Online OOTB.
Open list in SharePoint Designer
Click on view
Click on web part in source code
Export web part by using ribbon on top
Open exported file in Notepad++ or other text editor
Search for tag SiteID
Replace SiteID with the SiteID of the source site (your root site)
Make sure you sure you have git and nmp installed on your local computer. Than follow these steps to run it on workbench: ( You have to run these commands one by one in the same order)
Clone the repository :
Command: git clone https://github.com/YOUR-USERNAME/YOUR-REPOSITORY
Install all dependencies:
Command: npm install
Now execute the commands as ...
Inside git source code you will find the readme.txt file. Please read this file and install all prerequisite that mentioned on file.
After installation you have to execute below command one by one on console.
Now you can preview spfx web part as SharePoint workbench
You can refer this link